最近だんだん寒くなってきています は
It's getting colder these days.
最近急に寒くなりました は
It's turned cold recently.
または
It's suddenly got cold.
今日は寒くなりました は
It turned cold today.
最近だんだん寒くなってきています は
It's getting colder these days.
最近急に寒くなりました は
It's turned cold recently.
または
It's suddenly got cold.
今日は寒くなりました は
It turned cold today.